<template>
	<view class="content">
		<view class="navbar" :style="{position:headerPosition,top:headerTop}">
			<view class="nav-item" :class="{current: filterIndex === 0}" @click="tabClick(0)">
				综合排序
			</view>
			<view class="nav-item" :class="{current: filterIndex === 1}" @click="tabClick(1)">
				销量优先
			</view>
			<view class="nav-item" :class="{current: filterIndex === 2}" @click="tabClick(2)">
				<text class="ft15" style="font-size: 30upx;">价格</text>
				<view class="p-box">
					<text :class="{active: priceOrder === 1 && filterIndex === 2}" class="yticon icon-shang"></text>
					<text :class="{active: priceOrder === 2 && filterIndex === 2}" class="yticon icon-shang xia"></text>
				</view>
			</view>
			<!-- <text class="cate-item yticon icon-fenlei1" @click="toggleCateMask('show')"></text> -->
		</view>
		<view class="goods-list">
			<view 
				v-for="(item, index) in rows" :key="index"
				class="goods-item"
				@click="navToDetailPage(item)"
			>
				<view class="image-wrapper">
					<image :src="item.pic" mode="aspectFill"></image>
				</view>
				<text class="title clamp text-over">{{item.name}}</text>
				<view class="price-box">
					<text class="price">{{item.price}}</text>
					<text class="ft12">已售 {{item.actual}}</text>
				</view>
			</view>
		</view>
		<uni-load-more :status="loadingType"></uni-load-more>
		
		<view class="cate-mask" :class="cateMaskState===0 ? 'none' : cateMaskState===1 ? 'show' : ''" @click="toggleCateMask">
			<view class="cate-content" @click.stop.prevent="stopPrevent" @touchmove.stop.prevent="stopPrevent">
				<scroll-view scroll-y class="cate-list">
					<view v-for="item in cateList" :key="item.id" style="float: left; width: 50%; padding-right: 10upx;">
						<view class="cate-item b-b"  :class="{active: item.id==cateId}" @click="changeCate(item)">
							{{item.name}}
						</view>
					</view>
					<button @click="rdscv()" style=" background: #fb603d; color: #ffffff; float: left; margin-left: 30upx; margin-top: 60upx; width: 40%;" class="ft14">清除筛选</button>
					<button @click="codis()" style="float: left; margin-left: 30upx; margin-top: 60upx; width: 40%;" class="ft14">关闭</button>
				</scroll-view>
			</view>
		</view>
		
	</view>
</template>

<script>
	import uniLoadMore from '@/components/uni-load-more/uni-load-more.vue';
	export default {
		components: {
			uniLoadMore	
		},
		data() {
			return {
				cateMaskState: 0, //分类面板展开状态
				headerPosition:"fixed",
				headerTop:"0px",
				loadingType: 'more', //加载更多状态
				filterIndex: 0, 
				cateId: 0, //已选三级分类id
				priceOrder: 0, //1 价格从低到高 2价格从高到低
				cateList: [],
				goodsList: [],
				currentId:0,
				rows:[],
				page:0,
				reload: false,
				tabClickindex:0,
				text:'',
			};
		},
		
		onLoad(options){
			// #ifdef H5
			this.headerTop = document.getElementsByTagName('uni-page-head')[0].offsetHeight+'px';
			// #endif
			this.cateId = options.tid;
			this.loadCateList(options.fid,options.sid);
			this.getList();
		},
		onPageScroll(e){
			//兼容iOS端下拉时顶部漂移
			if(e.scrollTop>=0){
				this.headerPosition = "fixed";
			}else{
				this.headerPosition = "absolute";
			}
		},
		//下拉刷新
		onPullDownRefresh(){
			this.page=0
			this.loadingType = 'more'
			this.reload= false
			this.getList();
		},
		//加载更多
		onReachBottom(){
			this.page=this.page*1+1
			console.log(this.page);
			if(!this.reload){
				this.getList();
			}else{
				this.loadingType === 'nomore'
			}
			
		},
		
		//监听搜索框文本变化
		onNavigationBarSearchInputChanged(e) {
			let text = e.text;
			if (text) {
				this.text=text;	
				return;
			}
		},
		//监听点击搜索按钮事件
		onNavigationBarSearchInputConfirmed(e) {
			//this.hide();
			let text = e.text;
			let this_=this
			this.text=text;
			this.cateId=0
			this.page=0
			this.currentId=0
			this.loadingType = 'more'
			this.reload= false
			if (!text) {
				uni.showModal({
					title: '',
					content:"请输入搜索内容",
					showCancel: false,
					confirmText: "确定",
					confirmColor:"#e19503",
					success: function (res) {
						// #ifdef APP-PLUS
						plus.key.hideSoftKeybord();
						// #endif
						this_.text=''
						this_.getList();//点击搜索方法
					}
				});
				return;
			} else {
				this.getList();//点击搜索方法
			}
			// #ifdef APP-PLUS
			plus.key.hideSoftKeybord();
			// #endif
			
		},
		// 监听原生标题导航按钮点击事件
		onNavigationBarButtonTap(e) {
			console.log(e.index)
				// #ifdef APP-PLUS
				plus.key.hideSoftKeybord();
				// #endif
				if(e.index==0){
					this.text='';
					this.cateId=0
					this.page=0
					this.currentId=0
					this.loadingType = 'more'
					this.reload= false
					this.getList();
				}
		},
		methods: {
			//加载分类
			async loadCateList(shopmenu){
				this.cateList = shopmenu;
			},
			getList() {
				console.log(this.filterIndex)
				console.log(this.priceOrder)
				uni.showLoading({
				    title: '加载中'
				});
				let data = {
					//column: 'id,post_id,title,author_name,cover,published_at' //需要的字段名
				};
				if(this.currentId>0){
					data.pid=this.currentId
				}
				var limit=10;
				data.filterIndex=this.filterIndex
				data.priceOrder=this.priceOrder
				if(this.text){
					data.keytext=this.text
				}
				data.limit=limit
				data.offset=limit*this.page
				uni.request({
					url: this.configs.webUrl+'/api/shop/shoplist',
					data: data,
					success: data => {
						uni.stopPullDownRefresh();
						setTimeout(function() {                           
						    uni.hideLoading();  
						},300)
						
						if(this.page>0){
							let list = data.data.rows;
							this.rows = this.reload ? list : this.rows.concat(list);
						}else{
							this.rows=data.data.rows;
						}
						if(data.data.rows.length==0){
							this.loadingType = 'nomore'
							this.reload= true
						}else{
							this.loadingType = 'more'
							this.reload= false
						}
						this.loadCateList(data.data.shopmenu)
					},
					fail: (data, code) => {
						setTimeout(function() {
						    uni.hideLoading();  
						},300)
					}
				});
			},
			//筛选点击
			
			tabClick(index){
				
				if(this.filterIndex === index && index !== 2){
					return;
				}
				this.filterIndex = index;
				if(index === 2){
					this.priceOrder = this.priceOrder === 1 ? 2: 1;
				}else{
					this.priceOrder = 0;
				}
				uni.pageScrollTo({
					duration: 300,
					scrollTop: 0
				})
				
				this.page=0
				this.loadingType = 'more'
				this.reload= false
				this.getList();
			},
			//显示分类面板
			toggleCateMask(type){
				let timer = type === 'show' ? 10 : 300;
				let	state = type === 'show' ? 1 : 0;
				this.cateMaskState = 2;
				setTimeout(()=>{
					this.cateMaskState = state;
				}, timer)
			},
			codis(){
				this.toggleCateMask();
				uni.pageScrollTo({
					duration: 300,
					scrollTop: 0
				})
			},
			rdscv(){
				this.cateId=0
				this.page=0
				this.currentId=0
				this.loadingType = 'more'
				this.reload= false
				this.getList();
				this.toggleCateMask();
				uni.pageScrollTo({
					duration: 300,
					scrollTop: 0
				})
			},
			//分类点击
			
			changeCate(item){
				this.cateId = item.id;
				this.toggleCateMask();
				uni.pageScrollTo({
					duration: 300,
					scrollTop: 0
				})
				
				this.page=0
				this.currentId=item.id
				this.loadingType = 'more'
				this.reload= false
				this.getList();
			},
			//详情
			navToDetailPage(item){
				//测试数据没有写id，用title代替
				let id = item.id;
				uni.navigateTo({
					url: `/pages/client/shop/product?id=${id}`
				})
			},
			stopPrevent(){}
		},
	}
</script>

<style lang="scss">
	page, .content{
		background: #ffffff;
	}
	.content{
		padding-top: 96upx;
	}

	.navbar{
		position: fixed;
		left: 0;
		top: var(--window-top);
		display: flex;
		width: 100%;
		height: 80upx;
		background: #fff;
		box-shadow: 0 2upx 10upx rgba(0,0,0,.06);
		z-index: 10;
		.nav-item{
			flex: 1;
			display: flex;
			justify-content: center;
			align-items: center;
			height: 100%;
			font-size: 30upx;
			color: $font-color-dark;
			position: relative;
			&.current{
				color: $base-color;
				&:after{
					content: '';
					position: absolute;
					left: 50%;
					bottom: 0;
					transform: translateX(-50%);
					width: 120upx;
					height: 0;
					border-bottom: 4upx solid $base-color;
				}
			}
		}
		.p-box{
			display: flex;
			flex-direction: column;
			.yticon{
				display: flex;
				align-items: center;
				justify-content: center;
				width: 30upx;
				height: 14upx;
				line-height: 1;
				margin-left: 4upx;
				font-size: 26upx;
				color: #888;
				&.active{
					color: $base-color;
				}
			}
			.xia{
				transform: scaleY(-1);
			}
		}
		.cate-item{
			display: flex;
			justify-content: center;
			align-items: center;
			height: 100%;
			width: 80upx;
			
			position: relative;
			font-size: 44upx;
			&:after{
				content: '';
				position: absolute;
				left: 0;
				top: 50%;
				transform: translateY(-50%);
				border-left: 1px solid #ddd;
				width: 0;
				height: 36upx;
			}
		}
	}

	/* 分类 */
	.cate-mask{
		position: fixed;
		left: 0;
		top: var(--window-top);
		bottom: 0;
		width: 100%;
		background: rgba(0,0,0,0);
		z-index: 95;
		transition: .3s;
		
		.cate-content{
			width: 430upx;
			height: 100%;
			background: #fff;
			float:right;
			transform: translateX(100%);
			transition: .3s;
		}
		&.none{
			display: none;
		}
		&.show{
			background: rgba(0,0,0,.4);
			
			.cate-content{
				transform: translateX(0);
			}
		}
	}
	.cate-list{
		display: flex;
		flex-direction: column;
		height: 100%;
		.cate-item{
			display: flex;
			align-items: center;
			height: 90upx;
			padding-left: 30upx;
 			font-size: 28upx;
			color: #555;
			position: relative;
		}
		.two{
			height: 64upx;
			color: #303133;
			font-size: 30upx;
			background: #f8f8f8;
		}
		.active{
			color: $base-color;
		}
	}

	/* 商品列表 */
	.goods-list{
		display:flex;
		flex-wrap:wrap;
		padding: 0 30upx;
		background: #fff;
		.goods-item{
			display:flex;
			flex-direction: column;
			width: 48%;
			padding-bottom: 40upx;
			&:nth-child(2n+1){
				margin-right: 4%;
			}
		}
		.image-wrapper{
			width: 100%;
			height: 330upx;
			border-radius: 3px;
			overflow: hidden;
			image{
				width: 100%;
				height: 100%;
				opacity: 1;
			}
		}
		.title{
			font-size: $font-lg;
			color: $font-color-dark;
			line-height: 80upx;
		}
		.price-box{
			display: flex;
			align-items: center;
			justify-content: space-between;
			padding-right: 10upx;
			font-size: 24upx;
			color: $font-color-light;
		}
		.price{
			font-size: $font-lg;
			color: $uni-color-primary;
			line-height: 1;
			&:before{
				content: '￥';
				font-size: 26upx;
			}
		}
	}
	

</style>
